Electrical device.



Patented May 2, 1905.

PATENT OFFICE.

HUBERT KRANTZ, OF NEW YORK, N. Y.

ELECTRICAL DEVICE.

SPECIFICATION forming part of Letters Patent No. 788,917, dated May 2,1905.

Application filed December 6, 1904. Serial No. 235,737.

To all whom, it may concern:

Be it known that I, HUBERT KRANTZ, a citi- Zen of the United States, anda resident of New York city, borough of Brooklyn, Kings county, State ofNew York, have invented Im- Switch within the limits of the spaceoccupied by the bus-bars, but at a safe distance from the busbars in thedirection at right angles to the plane of the bus-bars.

In the present invention I provide a combined fuse-connection piece andswitch contact-blade adapted for use with this form of panel-board whenknife-switches are to be placed on the board. However, I do not limitthe present invention to any particular form of panel-board, and myimproved connection and blade device may be used for other con nectionsthan fuses.

In the accompanying drawings, Figure l is a face view of a switch-boardprovided with one form of my improved connection and contactblade-piece. Fig. 2 is an end View of Fig. 1 looking from the right-handside. Fig. 3 represents the blank from which the connection andcontact-blade piece shown in Figs. 1 and 2 is made. Fig. 4 is a planview, and Figs. 5 and 6 side elevations, of the device made from theblank shown in Fig. 3. Fig. 7 represents a blank from which a modifiedform of connection and blade piece may be made, Fig. 8 being a plan, andFigs. 9 and 10 side elevations, of the device made from this blank. Fig.11 represents a blank for further modification, and Fig. 12 shows aportion of a switch mechanism provided with a device made from the blankshown in Fig. 11.

Referring to Figs. 1 and 2, A is the base, upon which the bus-bars B Bare placed, and C (I C (3* are cross-bars raised above the bus-bars andending approximately flush, crosswise, with the bus-bars. My improveddevice is shown at D in Figs. 1 and 2, and this form is separately shownin Figs. 3 to 6. The blank 1, Fig. 3, is cut on line 2 and bent on lines3, 4L, and 5, so that there is formed a base (Z, adapted to be securedto the base A, Fig. 2, an upright side (1, a bent-over top (Z to servefor a raised connection-plate, such as for a fuse E, Figs. 1 and 2, andan upright d", that forms a contact-blade for a knifeswitch, such as F,Figs. 1 and 2. This gives a device that occupies but a very smallportion of the panel-board base in the direction in which every bit ofspace counts.

Fig. 7 shows a rectangular blank 10 cut 011 line 11 and bent on lines 12and 13 to form a base it, a straight upright wall it, a bent-over top band an ogee wall 7L" rising above the portion 7L2. It will be evidentthat if this form-of device is substituted for the device D that it willbe secured to the base A, one end of the fuse E will be connected to thepart 71. and the top of the wall 72,3 will serve as a contact-blade forthe switch F.

Fig. 11 illustrates a blank D for a connection-piece the same as 1),Figs. 1 and 2, eX- cept that the upright wall for the contactblade has aprojecting portion d to enable a switch F, Fig. 12, pivoted near thepanelbase A to make propercontact therewith.

Various slight modifications may be made in these metallicconnection-pieces, such as varying the outline of the contact-blade partof either blank 1 or 10 in other convenient shapes than that shown inFig. 11 and bending the blade IL in other forms than the ogee shown, ornot giving it any bend at all, or in other Ways without departing frommy invention, the main object of which is to provide a device cheaplyand easily constructed, having a base, a connection-plate raised abovethe base to be suitable for certain purposes, such as that herein shown,of connecting a fuse to a cross-bar at a distance above the bus-bars,and an upright side or wall to act as a contact-blade for a switch.

I claim as my invention-- 1. In electrical switch mechanism, a metallicdevice having a base, a connection-plate above the base, and an uprightswitch contact-blade, all in one piece.

blank, one end being bent at right angles to form a base, the other endbeing slotted and one part thereof bent at right angles to form aconnection-plate above the base, the other part thereof forming a switchcontact-blade.

In testimony \vhereofI have signed my name to this specification in thepresence of two subscribing Witnesses.

I-IUBERT KRANTZ.

Witnesses:

E. HoMAN, S. L. WIIITLOCK.

